Study of fragment in different shapes oblique penetration on circular tube
- DOI
- 10.2991/imst-16.2016.28How to use a DOI?
- Keywords
- preformed fragment; circular tube; oblique penetration; ultimate penetration rate; numerical simulation.
- Abstract
LS-DYNA finite element software was used to set up the computational model of fragment oblique penetration on circular tube, the dynamic process of cylindrical, spherical and cubic fragment penetration on circular tube was simulated under different working conditions, acquired the damage characteristics and ultimate penetration rate of circular tube under the penetration of fragments in different shapes, studied the influencing law between the initial velocity of fragment with the critical angle of ricochet. The results show that the penetration ability of cylindrical fragment is the strongest, the critical damage pattern of circular tube is shear perforation or penetrating cracks; The ultimate penetration rate Vu and the entry angle φ is exponential correlation, the influence of φ for Vu mainly embodied in the stage of φ >40°; The initial velocity V0 has a great influence on the critical angle of ricochet φu when Vu< 900m/s, the value of φu correspond to the cylindrical fragment in the biggest, the penetration is the most stable; The value of φu will tend to be a certain value along the V0 increases to 1200m/s.
- Copyright
- © 2016, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Xuefei Fan AU - Weibing Li AU - Guili Zhu AU - Xiaoming Wang PY - 2016/11 DA - 2016/11 TI - Study of fragment in different shapes oblique penetration on circular tube BT - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016) PB - Atlantis Press SP - 191 EP - 197 SN - 1951-6851 UR - https://doi.org/10.2991/imst-16.2016.28 DO - 10.2991/imst-16.2016.28 ID - Fan2016/11 ER -